diff --git a/domain/miningmanager/mempool/mempool.go b/domain/miningmanager/mempool/mempool.go
index 530720a10..6362e483d 100644
--- a/domain/miningmanager/mempool/mempool.go
+++ b/domain/miningmanager/mempool/mempool.go
@@ -149,12 +149,6 @@ func (mp *mempool) BlockCandidateTransactions() []*externalapi.DomainTransaction
 	var spamTxNewestUTXODaaScore uint64
 	for _, tx := range readyTxs {
 		if len(tx.Outputs) > len(tx.Inputs) {
-			numExtraOuts := len(tx.Outputs) - len(tx.Inputs)
-			if numExtraOuts > 2 && tx.Fee < uint64(numExtraOuts)*constants.SompiPerKaspa {
-				log.Debugf("Filtered spam tx %s", consensushashing.TransactionID(tx))
-				continue
-			}
-
 			hasCoinbaseInput := false
 			for _, input := range tx.Inputs {
 				if input.UTXOEntry.IsCoinbase() {
@@ -163,6 +157,12 @@ func (mp *mempool) BlockCandidateTransactions() []*externalapi.DomainTransaction
 				}
 			}
 
+			numExtraOuts := len(tx.Outputs) - len(tx.Inputs)
+			if !hasCoinbaseInput && numExtraOuts > 2 && tx.Fee < uint64(numExtraOuts)*constants.SompiPerKaspa {
+				log.Debugf("Filtered spam tx %s", consensushashing.TransactionID(tx))
+				continue
+			}
+
 			if hasCoinbaseInput || tx.Fee > uint64(numExtraOuts)*constants.SompiPerKaspa {
 				candidateTxs = append(candidateTxs, tx)
 			} else {
diff --git a/domain/miningmanager/mempool/validate_and_insert_transaction.go b/domain/miningmanager/mempool/validate_and_insert_transaction.go
index 831557e13..613e9f845 100644
--- a/domain/miningmanager/mempool/validate_and_insert_transaction.go
+++ b/domain/miningmanager/mempool/validate_and_insert_transaction.go
@@ -30,9 +30,17 @@ func (mp *mempool) validateAndInsertTransaction(transaction *externalapi.DomainT
 		return nil, err
 	}
 
+	hasCoinbaseInput := false
+	for _, input := range transaction.Inputs {
+		if input.UTXOEntry.IsCoinbase() {
+			hasCoinbaseInput = true
+			break
+		}
+	}
+
 	numExtraOuts := len(transaction.Outputs) - len(transaction.Inputs)
-	if numExtraOuts > 2 && transaction.Fee < uint64(numExtraOuts)*constants.SompiPerKaspa {
-		log.Warnf("Rejected spam tx %s from mempool", consensushashing.TransactionID(transaction))
+	if !hasCoinbaseInput && numExtraOuts > 2 && transaction.Fee < uint64(numExtraOuts)*constants.SompiPerKaspa {
+		log.Warnf("Rejected spam tx %s from mempool (%d outputs)", consensushashing.TransactionID(transaction), len(transaction.Outputs))
 		return nil, transactionRuleError(RejectSpamTx, fmt.Sprintf("Rejected spam tx %s from mempool", consensushashing.TransactionID(transaction)))
 	}